SJ700-2 Instruction Manual NT204DX - Hitachi America, Ltd.
SJ700-2 Instruction Manual NT204DX - Hitachi America, Ltd.
SJ700-2 Instruction Manual NT204DX - Hitachi America, Ltd.
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Chapter 4 Explanation of Functions<br />
(vii) Writing data to multiple registers [10h]<br />
This function writes data to sequential registers.<br />
(Example)<br />
When setting "3,000 Hz" as the Acceleration (1) time (F002) in the inverter at slave address "1":<br />
Since register "1103h" and "1104h" to store the Acceleration (1) time (F002) have a data resolution of 0.01<br />
seconds, specify "300000" (493E0h) as the updating data to set "3,000 seconds".<br />
Query<br />
Field name<br />
Sample setting<br />
(hexadecimal)<br />
1 Slave address (*1) 01<br />
2 Function code 10<br />
3 Starting register address<br />
11<br />
(upper digit) (*2)<br />
4 Starting register address<br />
02<br />
(lower digit) (*2)<br />
5 Number of registers (upper<br />
00<br />
digit)<br />
digit)<br />
6<br />
Number of registers (lower<br />
02<br />
digit)<br />
7 Number of data bytes (*3) 04<br />
8 Updating data 1 (upper digit) 00<br />
9 Updating data 1 (lower digit) 04<br />
10 Updating data 2(upper digit) 93<br />
11 Updating data 2(lower digit) E0<br />
12 CRC-16 code (upper digit) 9E<br />
13 CRC-16 code (lower digit) 9F<br />
*1 If this query is broadcasted, no inverter will return any response.<br />
*2 Note that the starting register address is 1 less than the actual<br />
address of the register to which the data is to be written first.<br />
*3 As the number of bytes, do not specify the number of registers but<br />
the number of bytes to be actually updated.<br />
If the function to write data to multiple registers cannot be executed normally, the inverter will return an<br />
exception response. For details, see Item (viii), "Exception response."<br />
(viii) Exception response<br />
The master system requests the inverter (slave) to return a response upon reception of a query other than<br />
broadcasted queries. The inverter must return the response that matches the query it has received.<br />
However, if an error is found in a query, the inverter will return an exception response.<br />
The exception response consists of the following fields:<br />
Field configuration<br />
Slave address<br />
Function code<br />
Exception code<br />
CRC-16 code<br />
Details of the field configuration are described below. The exception response in reply to a query includes<br />
a function code that is the sum of "80h" and the function code specified by the query. The exception code<br />
in the exception response indicates the content of the error.<br />
Function codes<br />
Exception codes<br />
Query Exception response Code<br />
Description<br />
01h<br />
81h<br />
01h An unsupported function is specified.<br />
03h<br />
83h<br />
02h The specified address is not found.<br />
05h<br />
85h<br />
03h The specified data has an unacceptable format.<br />
06h<br />
86h<br />
21h<br />
The data to be written to a register exceeds the range of inverter<br />
0Fh<br />
10h<br />
8Fh<br />
90h<br />
22h<br />
4 - 138<br />
Response<br />
Field name<br />
Sample setting<br />
(hexadecimal)<br />
1 Slave address (*1) 01<br />
2 Function code 10<br />
3 Starting register address (upper 11<br />
digit) (*2)<br />
4 Starting register address (lower 02<br />
digit) (*2)<br />
5 Number of registers (upper<br />
00<br />
6 Number of registers (lower digit) 02<br />
7 CRC-16 code (upper digit) E5<br />
8 CRC-16 code (lower digit) 34<br />
specifications.<br />
The inverter restricts the execution of the specified function:<br />
- Rewriting a register that cannot be rewritten during the operation<br />
- Issuing an Enter command during the operation (in undervoltage<br />
status)<br />
- Writing to a register during tripping (because of undervoltage)<br />
- Writing to a read-only register (coil)